Doing a quick check isn't always foolproof, of course, because it's entirely possible to create invalid Visa numbers that are 16 digits in length and begin with the number four.
This method is not foolproof, as older, tech-savvy kids may figure out how to unblock these programs, but it is a start for parents who work outside the home and can't be there when youngsters get home from school.
Following the viewing recommendations that correspond with MPAA ratings can help parents make informed decisions about which films are acceptable for children to watch, but the system certainly isn't foolproof.
Liquid eyeliners work best when it comes to evening eye makeup, so ditch your daytime pencil and try out all of the fantastic foolproof liquid liners currently available for purchase.
Made from natural bristles, a MAC eyeshadow brush can make shadow application all the more foolproof, while a roll case serves as the perfect place to store your trusty tools.